MESSENGER-4231 add new loginflow

RiotSwiftUI/Modules/Authentication/ServerSelection/View/AuthenticationServerSelectionScreen.swift

@@ -67,6 +67,9 @@ struct AuthenticationServerSelectionScreen: View {
                                 message: Text(BWIL10n.authenticationServerSelectionServerDeniedMessage),
                                 dismissButton: .default(Text(VectorL10n.ok)))
                         }
+                    if BWIBuildSettings.shared.authScreenShowTestServerOptions {
+                        serverSelectionButton
+                    }
                 }
                 .readableFrame()
                 .padding(.horizontal, 16)
@@ -221,6 +224,24 @@ struct AuthenticationServerSelectionScreen: View {
             UIApplication.shared.open(url, options: [:], completionHandler: nil)
         }
     }
+    
+    // bwi: show server selection button
+    var serverSelectionButton: some View {
+        VStack() {
+            Menu(content: {
+                ForEach(ServerURLHelper.shared.serverSettings, id: \.self) { server in
+                    Button(server.name, action: {
+                        viewModel.homeserverAddress = server.serverUrl
+                    })
+                }
+            }, label: {
+                Button(action: { return }) {
+                    Text(BWIL10n.bwiAuthBetaSelectionButtonTitle)
+                }
+                .buttonStyle(PrimaryActionButtonStyle())
+            })
+        }
+    }
 
 }